Initializing the configuration library.

.gitignore

@@ -0,0 +1,4 @@
+target/
+project/target/
+project/project/
+modules/core/target/

.pre-commit-config.yaml

@@ -0,0 +1,11 @@
+---
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.4.0
+    hooks:
+      - id: end-of-file-fixer
+      - id: trailing-whitespace
+  - repo: https://git.garrity.co/garrity-software/gs-pre-commit-scala
+    rev: v0.1.0
+    hooks:
+      - id: scalafmt

.scalafmt.conf

@@ -0,0 +1,72 @@
+// See: https://github.com/scalameta/scalafmt/tags for the latest tags.
+version = 3.7.17
+runner.dialect = scala3
+maxColumn = 80
+
+rewrite {
+    rules = [RedundantBraces, RedundantParens, Imports, SortModifiers]
+    imports.expand = true
+    imports.sort = scalastyle
+    redundantBraces.ifElseExpressions = true
+    redundantBraces.stringInterpolation = true
+}
+
+indent {
+    main = 2
+    callSite = 2
+    defnSite = 2
+    extendSite = 4
+    withSiteRelativeToExtends = 2
+    commaSiteRelativeToExtends = 2
+}
+
+align {
+    preset = more
+    openParenCallSite = false
+    openParenDefnSite = false
+}
+
+newlines {
+    implicitParamListModifierForce = [before,after]
+    topLevelStatementBlankLines = [
+        {
+            blanks = 1
+        }
+    ]
+    afterCurlyLambdaParams = squash
+}
+
+danglingParentheses {
+    defnSite = true
+    callSite = true
+    ctrlSite = true
+    exclude = []
+}
+
+verticalMultiline {
+    atDefnSite = true
+    arityThreshold = 2
+    newlineAfterOpenParen = true
+}
+
+comments {
+    wrap = standalone
+}
+
+docstrings {
+    style = "SpaceAsterisk"
+    oneline = unfold
+    wrap = yes
+    forceBlankLineBefore = true
+}
+
+project {
+  excludePaths = [
+    "glob:**target/**",
+    "glob:**.metals/**",
+    "glob:**.bloop/**",
+    "glob:**.bsp/**",
+    "glob:**metals.sbt",
+    "glob:**.git/**"
+  ]
+}

LICENSE

@@ -0,0 +1,202 @@
+
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README.md

@@ -0,0 +1,18 @@
+# gs-config
+
+[License (Apache 2.0)](./LICENSE)
+
+Configuration library for Scala 3.
+
+- [Usage](#usage)
+
+## Usage
+
+This library is not yet published.
+
+```scala
+object GS {
+  val Config: ModuleID =
+    "gs" %% "gs-config-v0" % "0.1.0"
+}
+```

build.sbt

@@ -0,0 +1,139 @@
+val scala3: String = "3.3.1"
+
+ThisBuild / organizationName     := "garrity software"
+ThisBuild / organization         := "gs"
+ThisBuild / organizationHomepage := Some(url("https://garrity.co/"))
+ThisBuild / scalaVersion         := scala3
+ThisBuild / versionScheme        := Some("early-semver")
+
+externalResolvers := Seq(
+  "Garrity Software Releases" at "https://maven.garrity.co/releases"
+)
+
+val ProjectName: String = "gs-config"
+val Description: String = "Garrity Software Configuration Library"
+
+/**
+  * Helper to extract the value from `-Dproperty=value`.
+  *
+  * @param name The property name.
+  * @param conv The conversion function to the output type.
+  * @return The converted value, or `None` if no value exists.
+  */
+def getProperty[A](
+  name: String,
+  conv: String => A
+): Option[A] =
+  Option(System.getProperty(name)).map(conv)
+
+/**
+  * Use `sbt -Dversion=<version>` to provide the version, minus the SNAPSHOT
+  * modifier. This is the typical approach for producing releases.
+  */
+val VersionProperty: String = "version"
+
+/**
+  * Use `sbt -Drelease=true` to trigger a release build.
+  */
+val ReleaseProperty: String = "release"
+
+/**
+  * The value of `-Dversion=<value>`.
+  *
+  * @return The version passed as input to SBT.
+  */
+lazy val InputVersion: Option[String] =
+  getProperty(VersionProperty, identity)
+
+/**
+  * @return "-SNAPSHOT" if this is NOT a release, empty string otherwise.
+  */
+lazy val Modifier: String =
+  if (getProperty(ReleaseProperty, _.toBoolean).getOrElse(false)) ""
+  else "-SNAPSHOT"
+
+/**
+  * Version used if no version is passed as input. This helps with default/local
+  * builds.
+  */
+val DefaultVersion: String = "0.1.0-SNAPSHOT"
+
+/**
+  * This is the output version of the published artifact. If this build is not
+  * a release, the suffix "-SNAPSHOT" will be appended.
+  *
+  * @return The project version.
+  */
+lazy val SelectedVersion: String =
+  InputVersion
+    .map(v => s"$v$Modifier")
+    .getOrElse(DefaultVersion)
+
+/**
+  * The major version (first segment) value. Used to label releases.
+  *
+  * @return The major version of the project.
+  */
+lazy val MajorVersion: String =
+  SelectedVersion.split('.').apply(0)
+
+val sharedSettings = Seq(
+  scalaVersion := scala3,
+  version      := SelectedVersion
+)
+
+lazy val publishSettings = Seq(
+  publishMavenStyle      := true,
+  Test / publishArtifact := false,
+  pomIncludeRepository   := Function.const(false),
+  scmInfo := Some(
+    ScmInfo(
+      url(s"https://git.garrity.co/garrity-software/$ProjectName"),
+      s"git@git.garrity.co:garrity-software/$ProjectName.git"
+    )
+  ),
+  description := Description,
+  licenses := List(
+    "Apache 2.0" -> url("https://www.apache.org/licenses/LICENSE-2.0.html")
+  ),
+  homepage := Some(url(s"https://git.garrity.co/garrity-software/$ProjectName")),
+  publishTo := {
+    val repo = "https://maven.garrity.co/"
+    if (SelectedVersion.endsWith("SNAPSHOT")) Some("snapshots" at repo + "snapshots")
+    else Some("releases" at repo + "releases")
+  }
+)
+
+lazy val testSettings = Seq(
+  libraryDependencies ++= Seq(
+    "org.scalameta" %% "munit" % "1.0.0-M10" % Test
+  )
+)
+
+lazy val `gs-config` = (project.in(file(".")))
+  .settings(sharedSettings)
+  .settings(publishSettings)
+  .settings(testSettings)
+  .settings(name := s"$ProjectName-v$MajorVersion")
+  .settings(
+    libraryDependencies ++= Seq(
+    )
+  )
+
+ThisBuild / scalacOptions ++= Seq(
+  "-encoding",
+  "utf8",         // Set source file character encoding.
+  "-deprecation", // Emit warning and location for usages of deprecated APIs.
+  "-feature", // Emit warning and location for usages of features that should be imported explicitly.
+  "-explain", // Explain errors in more detail.
+  "-unchecked", // Enable additional warnings where generated code depends on assumptions.
+  "-explain-types",           // Explain type errors in more detail.
+  "-Xfatal-warnings",         // Fail the compilation if there are any warnings.
+  "-language:strictEquality", // Enable multiversal equality (require CanEqual)
+  "-Wunused:implicits",       // Warn if an implicit parameter is unused.
+  "-Wunused:explicits",       // Warn if an explicit parameter is unused.
+  "-Wunused:imports",         // Warn if an import selector is not referenced.
+  "-Wunused:locals",          // Warn if a local definition is unused.
+  "-Wunused:privates",        // Warn if a private member is unused.
+  "-Ysafe-init" // Enable the experimental safe initialization check.
+)

project/build.properties

@@ -0,0 +1 @@
+sbt.version=1.9.8

project/plugins.sbt

@@ -0,0 +1 @@
+addSbtPlugin("org.scoverage" % "sbt-scoverage" % "2.0.8")

src/main/scala/gs/config/Configuration.scala

@@ -0,0 +1,3 @@
+package gs.config
+
+trait Configuration